waeckmeisteb



.(No Model.)

A. WAROKME-ISTER.

Rolls of Hat Felting Machines. N0. 243,179. Patented June 21, I881.

UNITED STATES PATENT OFF CE.

AUGUS'I L. WAROKMEISTER, OF NEWARK, NEW JERSEY, ASSIGNOR TO CHARLES A. VVHARTON, OF SAME PLACE.

ROLLS OFVHAT- FELTING MACHINES.

SPECIFICATION forming part of Letters Patent No. 243,179, dated June 21, 1881.

Application filed April 30, 1881. (No model.)

To all whom it may concern Be it known that I, A. L. WARcKMErsrER, a subject of the Emperor of Germany, residing in the city of Newark, county of Essex and State of New Jersey, have-invented certain new and useful Improvements in Hat- Felting Rolls, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

My invention relates to an improvement in the rolls of hat-felting machines; and it consists in mounting smallerrollersinorupon the surface of such rolls in lieu of the ribs hitherto employed to indent the bundle of felts rotated by the rolls.

In the present practice, in hatsizing machines, several hat-felts are madefinto a round bundle and laid into the cavity between two adjacent rolls, which rotate in the same direction, as indicated in Fig. 1 of the drawings annexed, and are there rolled and indented by ribs formed upon the surface of the rolls. This operation is intended to imitate the hand rolling and working, by which hats are felted most successfully but the positive rotary motion of the surface of a solid roll and its projecting ribs causes a greater degree of friction and rubbing than is desirable, which it is the chief purpose of my invention to reduce. The means 1 have devised to accomplish this object are shown in the annexed drawings, of which Figure 1 is an end view of the rolls detached from a three-roll machine. Fig. 2 is a side view of the top roll; Fig. 3, a side view of the front roll, and Fig. 4 a side view of the rear roll.

A isthe top roll; B, the front roll, and O the rear roll; and to illustrate the different modes of carrying out my invention I have shown the smaller rollers applied to each of thethree main 1 rolls in a different manner.

A ers,r r r, secured in gutters formed in the main roll for the greater part of its length, their convex surfaces protruding somewhat above the cylindrical body of the main roll.

7 At 0 is shown a roll provided with two sets of smaller rollers, arranged in grooves or gutters extending from about the middle of the rolls length to its ends. The rollers in each set are' disposed, alternately, upon the body of the main roll, with the rollers of the other set, their projecting surfaces thus striking, alternately, against the felt at its right and left hand side. The rollers are provided with bearings b andjournals c, the latter being secured to the body of the roll by screws, as shown upon roll A, or by a shank or pin driven into the roll, as upon roll B.

The arrows (1 indicate the motion ofthe three rolls, and the felts formed ina bundle between the rolls are lettered f. Arrows e 0 also indicate the rotary motion of the small rollers when in contact with the felts, and it is easy to perceive that their rotation diminishes the friction of the felts against the main roll without reducing at all the indurating effect for which ribs are commonly employed. The projections formed upon the main roll by the revolving rollers r 1' thus operate very nearly like the knuckles and ball of the hand, as commonl y used by an operator in working over a roll of felts.

I. have found that the felting done by my improved rolls was more rapid and thorough than that done by any kind of ribbed roll in use, and having shown how the smaller rollers may be disposed upon the larger rolls and secured thereto in any desired manner, I do not limit myself to any particular way of mounting them upon such rolls.

I am aware that aprons have been made of a series of rollers moving in contact with bundles of felts, and that fixed rollers have been mounted around a revolving drum as in patent to E. Beesley; but the slow rate of motion possible with all such devices has caused them to be superseded very generally by rap idly-revolving rolls operated in pairs or sets, between which the felts could be inserted and removed with facility; and it is to such quickly-running rolls mounted in pairs or in sets, with or without top-pressing rolls, that my auxiliary rolls 1' are applicable.

Although the main rolls shown in the drawings are of uniform diameter from end to end, it is obvious that my improvement could be applied with equal facility to rolls made smaller in the middle or at the ends; and I do not, therefore, limit myself to the combination of the smaller rollers with the parallel rolls shown in the drawings.

The rollers r 4" may also be made conical in shape or larger at the ends or at the middle, as desired, to produce the most effective pressure upon the felts, and by means of the latter shape applied to rollers arranged, as shown in Fig. 4, the convex shape of the felt bundle may be largely compensated, and its substance pressed quite uniformly by the small rollers m".

I therefore claim my invention as follows:

1. A roll for hat-felting machines of the class herein described, provided with a series of small rollers projecting beyond the'general surface of the main roll, substantially as herein set forth.

AUG. L. WARCKMEISTER:

Witnesses:

THos. S. CRANE, WM. DIETZ. 

